Cardinals vs Yankees Prediction Market Odds, August 3, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Cardinals | +1.5 53%73% | O 11.5 20% | 37%37% | 37% Kalshi |
â–¶Yankees | -1.5 47%27% | U 11.5 80% | 65%64% | 65% Kalshi |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
â–¶St. Louis Cardinals | +1.5 | O 11.5 | 37% Kalshi | |
â–¶New York Yankees | -1.5 | U 11.5 | 65% Kalshi |
The New York Yankees are the 64c home favorite over the St. Louis Cardinals in the series opener at Yankee Stadium, and Kalshi and Polymarket are quoting the identical number on both sides (64c New York, 37c St. Louis). That is the widest moneyline gap on the eight-game August 3, 2026 slate and works out to roughly a 63% implied win probability once the 1c of two-way vig comes out. New York is 63-49 and 2.5 games back of Tampa Bay in the AL East; St. Louis is 55-57 and 14.5 back of Milwaukee in the NL Central. The board has traded about $49.7K across the two platforms.
The Cardinals vs Yankees series opener prices as the most lopsided game on the eight-game August 3, 2026 board. New York sits at 64c on the moneyline with St. Louis at 37c, and the two exchanges are quoting the same number on both sides, which is rare on a game carrying this much volume. First pitch at Yankee Stadium is 7:05 PM ET. The gap traces to the pitching matchup more than to the standings: Cam Schlittler carries a 2.04 ERA into the start for New York, and Michael McGreevy brings a 3.57 ERA for St. Louis.
Cardinals vs Yankees Market Context
New York enters at 63-49, second in the AL East and 2.5 games back of Tampa Bay (65-46), with a 26-23 record at home. The Yankees trade at 95c in the 2026 playoff market, so the October question is close to settled and the daily board is the live one. St. Louis is 55-57 and 14.5 games back of Milwaukee (69-42) in the NL Central, and its playoff contract sits at 11c. One split worth noting before accepting the price at face value: the Cardinals are 27-25 on the road and 28-32 at home, so this is a team that has performed better away from Busch Stadium than in it.
The moneyline is a clean two-sided board. New York at 64c and St. Louis at 37c sum to 101c, which is 1c of vig, about as tight as a game market gets. Devigged, that is a 63.4% Yankees win probability against 36.6% for St. Louis. The sportsbook consensus lands in the same place: the closing price of -193 on New York and +158 on St. Louis devigs to roughly 63%, so the exchange and the book are not disagreeing about this game, only about how much juice to charge for it.
The derivative markets fill in the shape of the expected win. The Yankees run line at -1.5 trades at 45c, meaning the market gives New York a 45% chance of winning by two or more, and the -2.5 alternate is 34.5c (34c Kalshi, 35c Polymarket). St. Louis at -1.5 is 27c. On totals, Over 7.5 is 54c, Over 8.5 is 46c, and Over 9.5 is 36.5c, which places the market's true number right at 8 runs and matches the posted sportsbook total. The first-five-innings ladder agrees: Over 4.5 through five is 47c, so the market expects a little under half the game's runs to land while both starters are still in it. A run in the first inning prices at 48c.
The starter matchup is the whole story here, and the strikeout ladders quantify it. Schlittler is 10-6 with a 2.04 ERA, and his props price a median right at seven strikeouts: 6+ at 71c, 7+ at 55c, 8+ at 39c, 9+ at 25c. McGreevy is 4-9 with a 3.57 ERA, and his ladder centers just under five: 4+ at 63c, 5+ at 43c, 6+ at 26c. That is a two-strikeout gap in expectation between the two starters, and it explains the 27c moneyline spread better than the records do. On the offensive side, Ben Rice leads New York with 31 home runs, 73 RBI and a .266 average, while Jordan Walker paces St. Louis with 22 home runs and 81 RBI and Alec Burleson hits .284.
Line movement has been flat. The Yankees moneyline printed 64c on every Kalshi snapshot captured in the pregame window, and the Polymarket Cardinals side held 37c across ten consecutive snapshots without a single tick. The sportsbook line did drift, opening at -186 on New York and closing at -193, a small move toward the Yankees that the exchanges have not followed. A board that will not move off its opening number with a 2.04 ERA starter on the mound is a board with a settled read, so treat any late move off 64c as information about a lineup scratch or the weather rather than about the matchup.
Cross-platform, there is nothing to arbitrage on the main line. Kalshi and Polymarket both post 64c New York and 37c St. Louis. The only splits are 1c to 2c on the derivatives: Yankees -2.5 (34c Kalshi, 35c Polymarket), Over 9.5 (36c Kalshi, 37c Polymarket), first-five Over 2.5 (76c Kalshi, 74c Polymarket) and first-five Over 6.5 (28c Kalshi, 26c Polymarket). Polymarket also carries a three-way after-five-innings market that Kalshi does not list: New York 55c, St. Louis 30c, tied 14c. Depth is the real difference between the two venues, with roughly $34.4K of lifetime volume on the Kalshi Yankees contract against about $1.6K on the Polymarket side.
When the Cardinals vs Yankees Market Resolves
The market resolves on the final score of the game at Yankee Stadium on August 3, 2026, with first pitch scheduled for 7:05 PM ET. Moneyline contracts pay $1 per share on the winning team and $0 on the loser, and baseball has no draw outcome, so extra innings decide any tie. Run line contracts settle on the final margin and total contracts settle on combined runs including extra innings. First-five-innings markets settle on the score after the top and bottom of the fifth, independent of the final result. A postponement pushes settlement to the completed makeup game under each platform's rescheduling rules.
Key Cardinals vs Yankees Catalysts
Starter gap: Cam Schlittler (10-6, 2.04 ERA) against Michael McGreevy (4-9, 3.57 ERA) is what the 64c/37c moneyline is actually pricing.
Venue split: New York is 26-23 at home while St. Louis is 27-25 on the road, a narrower gap than a 27c price spread implies.
Flat tape: the Yankees moneyline held 64c on both exchanges through every pregame snapshot, so a move off that number is a signal, not noise.
Total at 8: Over 7.5 at 54c and Over 8.5 at 46c bracket the market's number, and first-five Over 4.5 at 47c says the starters are expected to hold most of it down.
Strikeout ladders: Schlittler's median prices at seven (7+ at 55c) and McGreevy's just under five (5+ at 43c), the cleanest quantified read on the mismatch.
Standings stake: New York is 2.5 games back in the AL East race and St. Louis is 14.5 back in the NL Central, so one side is playing for seeding and the other for evaluation.
Related Cardinals vs Yankees Markets
The daily game board feeds the season-long futures. New York's price on this game is the same read that keeps it near the front of the 2026 World Series market, and the divisional question is priced separately in the AL East market. On the St. Louis side, the Cardinals playoff market at 11c and the Cardinals season win total frame what a road series in the Bronx is worth to a team 14.5 games out. Every other game on the slate, with live Kalshi and Polymarket prices, is on the MLB board for today.
Resolution Criteria
Resolves to the team that wins the game at Yankee Stadium on August 3, 2026, with first pitch scheduled for 7:05 PM ET. Moneyline contracts pay $1 per share on the winning team and $0 on the losing team; Major League Baseball has no draw outcome, so extra innings decide any tie. Run line contracts settle on the final margin, meaning a New York Yankees -1.5 share pays only if the Yankees win by two or more runs. Total contracts settle on combined runs scored by both teams in the official final score, including extra innings, and first-five-innings markets settle on the score after the top and bottom of the fifth regardless of the final result. If the game is postponed, Kalshi and Polymarket settle on the completed makeup game under each platform's rescheduling rules; a game called early settles on the official shortened result once it is declared final.
Key Factors
- Cam Schlittler (10-6, 2.04 ERA) vs Michael McGreevy (4-9, 3.57 ERA) is the primary driver of the 64c/37c moneyline
- Yankees are 26-23 at home while the Cardinals are 27-25 on the road, a narrower venue split than the price implies
- Yankees moneyline held at 64c on both Kalshi and Polymarket through every pregame snapshot in the window
- Market total sits at 8 runs: Over 7.5 at 54c, Over 8.5 at 46c, Over 9.5 at 36.5c
- Schlittler strikeout ladder prices the median at seven (6+ at 71c, 7+ at 55c, 8+ at 39c)
- Standings stake: Yankees 2.5 games back in the AL East and 95c to make the playoffs, Cardinals 14.5 back and 11c
What are the current Cardinals vs Yankees odds?
As of August 3, 2026, the New York Yankees are the 64c moneyline favorite (64c on Kalshi, 64c on Polymarket) and the St. Louis Cardinals trade at 37c. That is a 63.4% implied win probability for New York once the 1c of two-sided vig is removed, the widest gap on the eight-game slate.
Who are the probable starting pitchers for Cardinals vs Yankees?
Cam Schlittler (10-6, 2.04 ERA) starts for the Yankees and Michael McGreevy (4-9, 3.57 ERA) starts for the Cardinals. The strikeout props price Schlittler's median at seven (7+ at 55c) and McGreevy's just under five (5+ at 43c).
What is the spread and total for Cardinals vs Yankees?
The Yankees run line at -1.5 trades at 45c and the -2.5 alternate at 34.5c. On totals, Over 7.5 is 54c and Over 8.5 is 46c, which places the market's number right at 8 runs on August 3, 2026.
Where does the Cardinals vs Yankees market trade and when does it resolve?
The game is listed on both Kalshi and Polymarket, with Kalshi carrying the deeper book at roughly $34.4K of lifetime volume on the Yankees moneyline against about $1.6K on Polymarket. It resolves on the final score at Yankee Stadium on August 3, 2026, first pitch 7:05 PM ET.
What should I watch before the Cardinals vs Yankees market resolves?
Lineup confirmation is the main pregame catalyst, with Ben Rice (31 home runs, 73 RBI) driving New York and Jordan Walker (22 home runs, 81 RBI) driving St. Louis. The moneyline held at 64c through the pregame snapshot window, so a move off that number points to a scratch or weather rather than a matchup rethink.